Question

Sắp xếp theo thứ tự từ bé đến lớn 

3/5 , 2/3 , 2/5

Answer 1

Mẫu số chung : \(15\)

\(\dfrac{3}{5}=\dfrac{3.3}{5.3}=\dfrac{9}{15}\\ \dfrac{2}{3}=\dfrac{2.5}{3.5}=\dfrac{10}{15}\\ \dfrac{2}{5}=\dfrac{2.3}{3.5}=\dfrac{6}{15}\\ 6< 9< 10\\ =>\dfrac{2}{5}< \dfrac{3}{5}< \dfrac{2}{3}\\ hay\)

\(\dfrac{2}{5};\dfrac{3}{5};\dfrac{2}{3}\)

Answer 2

2/5<3/5<2/3

Answer 3

Ta có:

`3/5 = 9/15`

`2/3 = 10/15`

`2/5 = 6/15`

Mà `6 < 9 < 10`

`=>` `6/15 < 9/15 < 10/15` hay `2/5 < 3/5 < 2/3`

`#` Neliz